U.S. Open – Round 2

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Charl Schwartzel of South Africa walks across the first green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ryan Moore hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Geoff Ogilvy of Australia watches his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the third hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland lines up a putt on the third green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson lines up a putt on the first green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Steve Stricker hits a shot to the first green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Retief Goosen of South Africa hits a shot to the first green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland chats with his caddie J.P. Fitzgerald during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits a shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Matteo Manassero of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Matteo Manassero of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Matteo Manassero of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Francesco Molinari of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Francesco Molinari of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Hiroyuki Fujita of Japan watches a shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kevin Na watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kevin Na watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Edoardo Molinari of Italy watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Edoardo Molinari of Italy hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Francesco Molinari of Italy watches a putt on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches a putt on the fifth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland waves to the gallery on the fifth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Miguel Angel Jimenez of Spain hits his tee shot on the 16th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits his tee shot on the 16th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ian Poulter of England reacts on the 16th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Allenby of Australia hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Briny Baird hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson hits his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson lines up his putt on the first green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Trevor Immelman of South Africa (R) pulls a club from his bag on the second hole while alongside caddie Mitch Knox (L) during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rickie Fowler hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rickie Fowler hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland chats with his caddie J.P. Fitzgerald in the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England walks off the 14th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England watches a pitch on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Brandt Snedeker hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Brandt Snedeker hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Aaron Baddeley of Australia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Aaron Baddeley of Australia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain evaluates his shot on the 12th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain evaluates his shot on the 12th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain evaluates his shot on the 12th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Miguel Angel Jimenez of Spain hits from a bunker on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits a shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Camilo Villegas of Colombia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits from a bunker on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches a shot in the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Patrick Cantlay with his caddie during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Patrick Cantlay with his caddie during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits a tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Patrick Cantlay hits a shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Miguel Angel Jimenez of Spain hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Patrick Cantlay hits a shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Patrick Cantlay reacts to a missed putt during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain stands alongside his bag before hitting an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Aaron Baddeley of Australia jumps on the 14th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ian Poulter of England hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ian Poulter of England walks off the tee bosx on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Camilo Villegas of Colombia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Camilo Villegas of Colombia prepares to his his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Camilo Villegas of Colombia reacts on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Maarten Lafeber of Netherlands waits with his caddie Richard Hill during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Hunter Mahan hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits a shot from the rough on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits a shot from the rough on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rickie Fowler, Hunter Mahan and Ian Poulter of England walks with their caddies to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rickie Fowler, Hunter Mahan and Ian Poulter of England walks with their caddies to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (L-R) Camilo Villegas of Colombia and Brandt Snedeker look on from the 14th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his approach shot from the fifth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his approach shot from the fifth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his approach shot from the fifth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his approach shot from the fifth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his approach shot from the fifth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland waves to the gallery after a birdie on the fourth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the fifth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland collects his golf ball from the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the eighth hole as Phil Mickelson looks on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the fifth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Charl Schwartzel of South Africa hits his tee shot on the seventh hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Trevor Immelman of South Africa hits his tee shot on the seventh hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches a shot from the rough on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland putts on the fourth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his second shot from the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his second shot from the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson (R) and Jim 'Bones' Mackay talk on the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson reacts to his second shot from the sixth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland putts on the fifth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland putts for birdie on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Todd Hamilton hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson hits his tee shot on the seventh hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland lines up his putt on the fourth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England (R) walks off the 13th tee with caddie Gary Tilston (L) during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England (R) walks off the 13th tee with caddie Gary Tilston (L) during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England (R) walks off the 13th tee with caddie Gary Tilston (L) during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kevin Chappell hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson waves to the gallery after a birdie on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Hunter Mahan hits his tee shot on the 16th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England (R) talks with caddie Gary Tilston (L) on the 16th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain (R) and caddie Glen Murray (L) look on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (L-R) Edoardo Molinari of Italy and Francesco Molinari of Italy walk off the 14th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Matteo Manassero of Italy is seen during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ian Poulter of England jokes with caddie Terry Mundy on the 16th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole as Dustin Johnson's caddie Joe LaCava looks on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland chats with his caddie J.P. Fitzgerald in the ninth fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits an approach shot to make eagle from the fairway on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alexandre Rocha of Brazil chats with his caddie Mark Hamilton during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Bubba Dickerson watches a shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole alongside his caddie J.P. Fitzgerald during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole alongside his caddie J.P. Fitzgerald during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the sixth hole as Dustin Johnson look on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates making eagle from the fairway on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Jason Dufner watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Johnn Senden of Australia watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: David Toms watches his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

Rory McIlroy swings of Northern Ireland

Rory McIlroy swings of Northern Ireland swings to make an eagle from the fairway on the eighth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

Rory McIlroy of Northern Ireland celebra

Rory McIlroy of Northern Ireland celebrates making an eagle from the fairway on the eighth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates a par saving putt on the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland (R) walks off the eighth tee with Phil Mickelson during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

Rory McIlroy of Northern Ireland celebra

Rory McIlroy of Northern Ireland celebrates making an eagle from the fairway on the eighth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates a par saving putt on the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland celebrates a par saving putt on the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson chats with his caddie Jim Mackay on the eighth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

Rory McIlroy of Northern Ireland retriev

Rory McIlroy of Northern Ireland retrieves his ball after making an eagle from the fairway on the eighth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England (R) waits on the 17th green with caddie Gary Tilston (L) during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England hits a putt on the 17th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the tenth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

Rory McIlroy of Northern Ireland swings

Rory McIlroy of Northern Ireland swings from the fairway on the ninth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

Rory McIlroy of Northern Ireland swings

Rory McIlroy of Northern Ireland swings from the bunker on the ninth hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (EDITORS NOTE: A POLARIZING FILTER WAS USED IN THE CAPTURE OF THIS IMAGE) Fans watch play around the tenth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (EDITORS NOTE: A POLARIZING FILTER WAS USED IN THE CAPTURE OF THIS IMAGE) Fans watch play around the tenth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (EDITORS NOTE: A POLARIZING FILTER WAS USED IN THE CAPTURE OF THIS IMAGE) Fans watch play around the tenth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (EDITORS NOTE: A POLARIZING FILTER WAS USED IN THE CAPTURE OF THIS IMAGE) Fans watch play around the tenth green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits an approach shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits an approach shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by David Cannon/Getty Images)

Rory McIlroy of Northern Ireland putts o

Rory McIlroy of Northern Ireland putts on the seventh hole during the second round of the 111th US Open at Congressional Country Club on June 17, 2011, in Bethesda, Maryland. AFP PHOTO / Jim WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Phil Mickelson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the tenth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: A general view of the tenth green is seen during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits a shot on the 15th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits a shot on the 15th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Charl Schwartzel of South Africa hits a shot to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson tosses his golf ball on the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Bubba Dickerson hits a shot to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: David Toms hits a shot to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kyung-Tae Kim of South Korea hits his tee shot on the 18th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kyung-Tae Kim of South Korea hits his tee shot on the 18th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kyung-Tae Kim of South Korea hits his tee shot on the 17th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kyung-Tae Kim of South Korea watches his approach shot on the 17th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kyung-Tae Kim of South Korea hits his approach shot on the 17th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: David Howell of England watches his tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland chats with his caddie J.P. Fitzgerald during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England hits a tee shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Stephen Gallacher of Scotland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Stephen Gallacher of Scotland hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: David Toms hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Bubba Dickerson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Steve Stricker hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland smiles as he walks off the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland smiles as he walks off the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland waves as he walks off the 11th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain chips on the 14th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Garrigus hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Stephen Gallacher of Scotland walks off the 14th tee as Jason Dufner watches his tee shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland watches his tee shot on the 12th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Miguel Angel Jimenez of Spain hits an approach shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits out of the bunker on the 18th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits a tee shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the ninth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rickie Fowler looks on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alvaro Quiros of Spain hits an approach shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson looks on from the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson looks on from the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits his tee shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson walks on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Zach Johnson hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Miguel Angel Jimenez of Spain hits a chip shot on the 14th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Chris Trotman/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits an approach shot on the 11th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Charl Schwartzel of South Africa hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Kenichi Kuboya of Japan hits a tee shot on the second hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Trevor Immelman of South Africa hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Charl Schwartzel of South Africa hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Trevor Immelman of South Africa hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Lucas Glover watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Lucas Glover watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Camilo Villegas of Colombia hits a shot during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits his tee shot on the seventh hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alexandre Rocha of Brazil plays a shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Do-Hoon Kim of South Korea and Robert Rock of England look on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Allenby of Australia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Geoff Ogilvy of Australia watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Alexandre Rocha of Brazil plays a shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Sergio Garcia of Spain hits his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Garrigus hits a shot to the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson hits an approach shot on the sixth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Andreas Harto of Denmark watches his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory Sabbatini of South Africa lines up a shot on the 13th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dustin Johnson (R) and caddie Joe LaCava (L) look on during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Seung Yul Noh of South Korea hits his tee shot on the fourth hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Ross Kinnaird/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Andres Gonzales hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Andres Gonzales hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: (L-R) Charl Schwartzel of South Africa, Zach Johnson and Trevor Immelman of South Africa walk off the 14th tee during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Dohoon Kim of South Korea hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Scott Pickney hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Steven Irwin hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Jon Mills of Canada hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Steven Irwin hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Elliot Gealy hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ryan Nelson hits a tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Chris Williams hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Ryan Moore plays a bunker shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Amateur Chris Williams hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Christopher DeForest reacts to his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Christopher DeForest hits his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Christopher DeForest wipes off his club alongside caddie John DeForest prior to hitting his tee shot on the 14th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland walks with his caddie J.P. Fitzgerald in the 15th fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Seung Yul Noh of South Korea hits a chip shot on the 13th hole during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Jamie Squire/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Robert Rock of England walks off the 18th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Rob Carr/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland reacts to a missed bogey putt on the 18th green during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)

U.S. Open - Round Two

BETHESDA, MD - JUNE 17: Rory McIlroy of Northern Ireland hits a shot in the 17th fairway during the second round of the 111th U.S. Open at Congressional Country Club on June 17, 2011 in Bethesda, Maryland. (Photo by Andrew Redington/Getty Images)